Born on May 28th, 1998, Na Ungjae 나웅재 is the youngest member of Imfact, 17 years old when he debuted. He was born in the Chinese Year of the Tiger; like group mate Jeup, his zodiac star sign is Gemini. He's 174 cm tall or 5'8½". Ungjae and member Sang share the same blood type, B.
All of the members of Imfact are heavily involved in the creation of their music, and Ungjae’s specialty is lyrics and composition. He is credited on the majority of songs on Imfact's first two mini albums. Among his other talents, Ungjae can also play the piano.
Imfact is a fully multilingual group because all five members can speak a second language besides their native Korean. Jaeup and Taeho can speak Mandarin. Jian, Sang, and Ungjae can speak Japanese. Sang can also speak English, making him trilingual.
The age gap between the oldest member, Jeup, and the maknae, Ungjae, is 5 years, 1 month, and 1 day.